.div_box1 {
  width: 500px;
  height: 300px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}
.div_box1 ul {
  width: 2500px;
  height: 100%;
  display: flex;
  position: relative;
}
.div_box1 ul li {
  flex: 1;
}
.div_box1 ul li img {
  width: 100%;
  height: 100%;
}
.div_box1 div {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: none;
}
.div_box1 div span {
  float: left;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  font-size: 40px;
  background-color: rgba(255, 255, 255, 0.4);
  color: peru;
}
.div_box1 div span:last-child {
  float: right;
}
.div_box1 ol {
  position: absolute;
  right: 100px;
  bottom: 20px;
}
.div_box1 ol li {
  float: left;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #3e3e;
  margin-right: 5px;
}
.div_box1 ol li:first-child {
  background-color: #ff2323;
}
.display1 {
  display: block !important;
}
